package com.csxy.six.service;

// MaterialService.java


import com.baomidou.mybatisplus.extension.service.IService;
import com.csxy.six.entity.Material;

import java.util.List;

public interface MaterialService extends IService<Material> {
    List<Material> getMaterialsByTag(String tag);
    boolean downloadMaterial(Long materialId, Long userId);
}